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    PRECODING CODEBOOK DESIGN FOR SINGLE USER MIMO
    3.
    发明申请
    PRECODING CODEBOOK DESIGN FOR SINGLE USER MIMO 审中-公开
    用于单用户MIMO的预编码设计

    公开(公告)号：US20130230118A1

    公开(公告)日：2013-09-05

    申请号：US13864764

    申请日：2013-04-17

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Eko N. Onggosanusi ,  Badri N. Varadarajan ,  Runhua Chen ,  Zukang Shen ,  Tarik Muharemovic

    IPC: H04B7/04

    CPC classification number: H04B7/0456 ,  H04B7/0426 ,  H04B7/0465 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0617 ,  H04L27/2601 ,  H04L27/34

    Abstract: A transmitter is for use with multiple transmit antennas and includes a precoder unit configured to precode data for a transmission using a precoding matrix selected from a codebook, wherein the codebook corresponds to the following three transmission properties for an uplink transmission: 1) all precoding elements from the precoding matrix have a same magnitude, 2) each precoding element from the precoding matrix is taken from a set of finite values and 3) there is only one non-zero element in any row of the precoding matrix. The transmitter also includes a transmit unit configured to transmit the precoded data.

    Abstract translation: 发射机用于多个发射天线，并且包括预编码器单元，其配置为使用从码本中选择的预编码矩阵来对数据进行预编码，其中所述码本对应于上行链路传输的以下三种传输属性：1）所有预编码元件 来自预编码矩阵具有相同的量值，2）来自预编码矩阵的每个预编码元素取自一组有限值，并且3）在预编码矩阵的任何行中只有一个非零元素。 发射机还包括被配置为发送预编码数据的发射单元。

    PSEUDORANDOM SEQUENCE GENERATION FOR OFDM CELLULAR SYSTEMS
    5.
    发明申请
    PSEUDORANDOM SEQUENCE GENERATION FOR OFDM CELLULAR SYSTEMS 审中-公开

    公开(公告)号：US20160119094A1

    公开(公告)日：2016-04-28

    申请号：US14289264

    申请日：2014-05-28

    Applicant: Texas Instruments Incorporated

    Inventor： Badri N. Varadarajan ,  Anand Ganesh Dabak ,  Tarkesh Pande ,  Eko N. Onggosanusi

    IPC: H04L5/00 ,  H04L25/02 ,  H04B1/04

    CPC classification number: H04L5/0048 ,  H04B1/04 ,  H04L23/02 ,  H04L25/0202 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2649

    Abstract: In one embodiment, a transmitter includes a binary sequence generator unit configured to provide a sequence of reference signal bits, wherein the sequence is an inseparable function of a cell identification parameter, a cyclic prefix mode corresponding to the transmitter and one or more time indices of the sequence. The transmitter also include a mapping unit that transforms the sequence of reference signal bits into a complex reference signal, and a transmit unit configured to transmit the complex reference signal. In another embodiment, a receiver includes a receive unit configured to receive a complex reference signal and a reference signal decoder unit configured to detect a sequence of reference signal bits from the complex reference signal, wherein the sequence is an inseparable function of a cell identification parameter, a cyclic prefix mode corresponding to a transmitter and one or more time indices of the sequence.

    Hybrid Communication Networks
    8.
    发明申请
    Hybrid Communication Networks 审中-公开
    混合通信网络

    公开(公告)号：US20150085883A1

    公开(公告)日：2015-03-26

    申请号：US14557858

    申请日：2014-12-02

    Applicant: Texas Instruments Incorporated

    Inventor： Kumaran Vijayasankar ,  Ramanuja Vedantham ,  Anand G. Dabak ,  Badri N. Varadarajan ,  Il Han Kim ,  Xiaolin Lu

    IPC: H04L5/00 ,  H04B3/54

    CPC classification number: H04L5/0048 ,  H04B3/54 ,  H04B3/542 ,  H04B2203/5408 ,  H04B2203/5466 ,  H04B2203/5483 ,  H04B2203/5491 ,  H04L5/0044 ,  H04L5/0055 ,  H04L5/0078 ,  H04L5/0094 ,  H04L25/0272

    Abstract: Systems and methods for designing, using, and/or implementing hybrid communication networks are described. In various embodiments, these systems and methods may be applicable to power line communications (PLC). For example, one or more of the techniques disclosed herein may include methods to coordinate medium-to-low voltage (MV-LV) and low-to-low voltage (LV-LV) PLC networks when the MV-LV network operates in a frequency subband mode and the LV-LV network operates in wideband mode (i.e., hybrid communications). In some cases, MV routers and LV routers may have different profiles. For instance, MV-LV communications may be performed using MAC superframe structures, and first-level LV to lower-level LV communications may take place using a beacon mode. Lower layer LV nodes may communicate using non-beacon modes. Also, initial scanning procedures may encourage first-to-second-level LV device communications rather than MV-to-first-level LV connections.

    Abstract translation: 描述了用于设计，使用和/或实现混合通信网络的系统和方法。 在各种实施例中，这些系统和方法可以适用于电力线通信（PLC）。 例如，本文公开的技术中的一个或多个技术可以包括当MV-LV网络以一个或多个的方式工作时协调中低电压（MV-LV）和低到低电压（LV-LV）PLC网络的方法 频率子带模式和LV-LV网络在宽带模式（即，混合通信）中工作。 在某些情况下，MV路由器和LV路由器可能具有不同的配置文件。 例如，可以使用MAC超帧结构来执行MV-LV通信，并且可以使用信标模式进行第一级LV到低级LV通信。 下层LV节点可以使用非信标模式进行通信。 此外，初始扫描程序可以鼓励第一级到第二级LV器件通信，而不是MV到一级LV连接。

    PSEUDORANDOM SEQUENCE GENERATION FOR OFDM CELLULAR SYSTEMS
    9.
    发明申请
    PSEUDORANDOM SEQUENCE GENERATION FOR OFDM CELLULAR SYSTEMS 有权
    OFDM细胞系统的PSEUDORANDOM序列生成

    公开(公告)号：US20140270011A1

    公开(公告)日：2014-09-18

    申请号：US14289223

    申请日：2014-05-28

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Badri N. Varadarajan ,  Anand Ganesh Dabak ,  Tarkesh Pande ,  Eko N. Onggosanusi

    IPC: H04L27/26

    CPC classification number: H04L5/0048 ,  H04B1/04 ,  H04L23/02 ,  H04L25/0202 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2649

    Abstract: In one embodiment, a transmitter includes a binary sequence generator unit configured to provide a sequence of reference signal bits, wherein the sequence is an inseparable function of a cell identification parameter, a cyclic prefix mode corresponding to the transmitter and one or more time indices of the sequence. The transmitter also include a mapping unit that transforms the sequence of reference signal bits into a complex reference signal, and a transmit unit configured to transmit the complex reference signal. In another embodiment, a receiver includes a receive unit configured to receive a complex reference signal and a reference signal decoder unit configured to detect a sequence of reference signal bits from the complex reference signal, wherein the sequence is an inseparable function of a cell identification parameter, a cyclic prefix mode corresponding to a transmitter and one or more time indices of the sequence.

    Abstract translation: 在一个实施例中，发射机包括被配置为提供参考信号比特序列的二进制序列发生器单元，其中该序列是小区识别参数的不可分离的功能，对应于发射机的循环前缀模式和一个或多个时间指数 序列。 发射机还包括将参考信号比特序列变换为复参考信号的映射单元，以及配置成发送复基准信号的发射单元。 在另一实施例中，接收机包括被配置为接收复参考信号的接收单元和被配置为从复参考信号检测参考信号位序列的参考信号解码器单元，其中该序列是小区识别参数的不可分离的函数 ，对应于发射机的循环前缀模式和序列的一个或多个时间索引。

    BEACON-ENABLED COMMUNICATIONS FOR VARIABLE PAYLOAD TRANSFERS
    10.
    发明申请
    BEACON-ENABLED COMMUNICATIONS FOR VARIABLE PAYLOAD TRANSFERS 有权

    公开(公告)号：US20220321171A1

    公开(公告)日：2022-10-06

    申请号：US17844118

    申请日：2022-06-20

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Kumaran Vijayasankar ,  Ramanuja Vedantham ,  Badri N. Varadarajan ,  Anand G. Dabak

    IPC: H04B3/54 ,  H04L5/00

    Abstract: Systems and methods for designing, using, and/or implementing beacon-enabled communications for variable payload transfers are described. In various embodiments, these systems and methods may be applicable to power line communications (PLC). For example, a method may include implementing a superframe having a plurality of beacon slots, a plurality of intermediate slots following the beacon slots, and a poll-based Contention Free Period (CFP) slot following the intermediate slots. Each of the beacon slots and each of the intermediate slots may correspond to a respective one of a plurality of frequency subbands, and the poll-based CFP slot may correspond to a combination of the plurality of frequency subbands. The method may also include receiving a poll request over a first of the plurality of frequency subbands during the poll-based CFP slot, and then transmitting a data packet over a second of the plurality of frequency subbands during the poll-based CFP slot.

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